This 86-tooth spur gear is a direct aftermarket replacement designed for TRAXXAS 1/10 2WD platforms listed below. Made from hardened carbon steel with a 48P tooth profile and CNC-machined surfaces, it replaces the stock nylon spur to provide a metal option for power transmission in the rear gearbox area.
Installation is straightforward for anyone familiar with basic drivetrain work on TRAXXAS models. Remove the rear gearbox cover, note gear mesh and shimming, swap the nylon spur for the 86T steel unit and re-check mesh with the included stainless steel washers. Retorque mounting hardware to manufacturer recommended values and verify free rotation of the drivetrain before running.
Tuning role and considerations: switching from nylon to steel changes wear characteristics and may require periodic inspection of mating pinion and bearings. Use proper gear mesh and ensure compatible pinion profile and pitch to avoid premature wear. This part is intended strictly for RC-scale drivetrain use within the compatible models list.
4690,4683,4686
Use this gear where a metal spur is preferred for drivetrain consistency and replace worn mating parts as needed. Confirm compatibility with your chassis before installation and check gear mesh carefully after fitting.
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